How do I fix dual monitor alignment?
This will produce some weird behaviors, but it's easy to fix. Right-click on the desktop and choose Display Settings. From this page, Windows 10 and Windows 11 users should be able to drag the rectangles around so they match the monitors' orientation on the desktop; say, if one is slightly lower than the other.
Should dual monitors be angled or straight?
In general, the secondary monitor should be at about a 30 degree angle to the primary monitor, and center line of the keyboard should be no more than 12 inches from center line of monitor.